OLD | NEW |
---|---|
1 // Copyright 2016 The Chromium Authors. All rights reserved. | 1 // Copyright 2016 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "modules/csspaint/CSSPaintDefinition.h" | 5 #include "modules/csspaint/CSSPaintDefinition.h" |
6 | 6 |
7 #include "bindings/core/v8/ScriptState.h" | 7 #include "bindings/core/v8/ScriptState.h" |
8 #include "bindings/core/v8/V8Binding.h" | |
9 #include "bindings/core/v8/V8BindingMacros.h" | |
10 #include "core/dom/ExecutionContext.h" | |
11 #include "core/frame/ConsoleTypes.h" | |
12 #include "core/inspector/ConsoleMessage.h" | |
13 #include "modules/csspaint/Geometry.h" | |
14 #include "modules/csspaint/PaintRenderingContext2D.h" | |
15 #include "platform/ScriptForbiddenScope.h" | |
16 #include "platform/graphics/ImageBuffer.h" | |
17 #include "platform/graphics/PaintGeneratedImage.h" | |
18 #include "platform/graphics/RecordingImageBufferSurface.h" | |
19 #include "platform/graphics/UnacceleratedImageBufferSurface.h" | |
8 | 20 |
9 namespace blink { | 21 namespace blink { |
10 | 22 |
23 namespace { | |
24 | |
25 // TODO(ikilpatrick): Modify RecordingImageBufferSurface so that it cannot | |
26 // fallback to a UnacceleratedImageBufferSurface. | |
27 class UnacceleratedSurfaceFactory : public RecordingImageBufferFallbackSurfaceFa ctory { | |
28 public: | |
29 virtual PassOwnPtr<ImageBufferSurface> createSurface(const IntSize& size, Op acityMode opacityMode) | |
30 { | |
31 return adoptPtr(new UnacceleratedImageBufferSurface(size, opacityMode)); | |
32 } | |
33 | |
34 virtual ~UnacceleratedSurfaceFactory() { } | |
35 }; | |
36 | |
37 } // namespace | |
38 | |
11 CSSPaintDefinition* CSSPaintDefinition::create(ScriptState* scriptState, v8::Loc al<v8::Function> constructor, v8::Local<v8::Function> paint) | 39 CSSPaintDefinition* CSSPaintDefinition::create(ScriptState* scriptState, v8::Loc al<v8::Function> constructor, v8::Local<v8::Function> paint) |
12 { | 40 { |
13 return new CSSPaintDefinition(scriptState, constructor, paint); | 41 return new CSSPaintDefinition(scriptState, constructor, paint); |
14 } | 42 } |
15 | 43 |
16 CSSPaintDefinition::CSSPaintDefinition(ScriptState* scriptState, v8::Local<v8::F unction> constructor, v8::Local<v8::Function> paint) | 44 CSSPaintDefinition::CSSPaintDefinition(ScriptState* scriptState, v8::Local<v8::F unction> constructor, v8::Local<v8::Function> paint) |
17 : m_scriptState(scriptState) | 45 : m_scriptState(scriptState) |
18 , m_constructor(scriptState->isolate(), constructor) | 46 , m_constructor(scriptState->isolate(), constructor) |
19 , m_paint(scriptState->isolate(), paint) | 47 , m_paint(scriptState->isolate(), paint) |
20 { | 48 { |
21 } | 49 } |
22 | 50 |
23 CSSPaintDefinition::~CSSPaintDefinition() | 51 CSSPaintDefinition::~CSSPaintDefinition() |
24 { | 52 { |
25 } | 53 } |
26 | 54 |
55 PassRefPtr<Image> CSSPaintDefinition::paint(const IntSize& size) | |
56 { | |
57 v8::Isolate* isolate = m_scriptState->isolate(); | |
58 | |
59 ScriptState::Scope scope(m_scriptState.get()); | |
60 v8::MicrotasksScope microtasksScope(isolate, v8::MicrotasksScope::kRunMicrot asks); | |
haraken
2016/04/11 02:18:14
v8::MicrotasksScope is handled by V8ScriptRunner::
ikilpatrick
2016/04/11 22:34:24
Done.
| |
61 | |
62 maybeCreatePaintInstance(); | |
63 v8::Local<v8::Object> instance = m_instance.newLocal(isolate); | |
64 | |
65 // We may have failed to create an instance class, in which case produce an | |
66 // invalid image. | |
67 if (isUndefinedOrNull(instance)) | |
68 return nullptr; | |
69 | |
70 PaintRenderingContext2D* renderingContext = PaintRenderingContext2D::create( | |
71 ImageBuffer::create(adoptPtr(new RecordingImageBufferSurface(size, adopt Ptr(new UnacceleratedSurfaceFactory()))))); | |
72 Geometry* geom = Geometry::create(size); | |
haraken
2016/04/11 02:18:14
geom => geometry
ikilpatrick
2016/04/11 22:34:24
Done.
| |
73 | |
74 v8::Local<v8::Value> argv[] = { | |
75 toV8(renderingContext, m_scriptState->context()->Global(), isolate), | |
76 toV8(geom, m_scriptState->context()->Global(), isolate) | |
77 }; | |
78 | |
79 v8::Local<v8::Function> paint = m_paint.newLocal(isolate); | |
80 | |
81 ScriptForbiddenScope::AllowUserAgentScript allowScripting; | |
haraken
2016/04/11 02:18:14
Why do you need ScriptForbiddenScope::AllowUserAge
ikilpatrick
2016/04/11 22:34:24
Done.
| |
82 v8::TryCatch block(isolate); | |
haraken
2016/04/11 02:18:14
You won't need this TryCatch.
| |
83 | |
84 V8ScriptRunner::callFunction(paint, m_scriptState->getExecutionContext(), in stance, 2, argv, isolate); | |
85 | |
86 // The paint function may have produced an error, in which case produce an | |
87 // invalid image. | |
88 if (block.HasCaught()) { | |
haraken
2016/04/11 02:18:14
What happens if the paint function didn't throw a
ikilpatrick
2016/04/11 22:34:23
Sorry didn't get "but didn't wrong with painting?"
haraken
2016/04/12 00:44:20
Thanks, makes sense.
| |
89 // TODO(ikilpatrick): messageHandlerInMainThread doesn't currently know | |
90 // about main-thread worklets. | |
91 m_scriptState->getExecutionContext()->addConsoleMessage(ConsoleMessage:: create(JSMessageSource, ErrorMessageLevel, "Failed to invoke the paint method.") ); | |
92 return nullptr; | |
93 } | |
94 | |
95 return PaintGeneratedImage::create(renderingContext->imageBuffer()->getPictu re(), size); | |
96 } | |
97 | |
98 void CSSPaintDefinition::maybeCreatePaintInstance() | |
99 { | |
100 ASSERT(m_invalidConstructor || m_instance.isEmpty()); | |
101 | |
102 if (m_invalidConstructor) | |
103 return; | |
104 | |
105 if (!m_instance.isEmpty()) | |
106 return; | |
107 | |
108 v8::Isolate* isolate = m_scriptState->isolate(); | |
109 v8::Local<v8::Function> constructor = m_constructor.newLocal(isolate); | |
110 ASSERT(!isUndefinedOrNull(constructor)); | |
111 | |
112 v8::Local<v8::Object> paintInstance; | |
113 v8::TryCatch block(isolate); | |
haraken
2016/04/11 02:18:14
You won't need this v8::TryCatch.
ikilpatrick
2016/04/11 22:34:24
Done.
| |
114 | |
115 if (!v8Call(constructor->NewInstance(m_scriptState->context()), paintInstanc e, block)) { | |
haraken
2016/04/11 02:18:14
Can we use V8ObjectConstructor::newInstance? Then
ikilpatrick
2016/04/11 22:34:23
Done.
| |
116 m_invalidConstructor = true; | |
117 // TODO(ikilpatrick): messageHandlerInMainThread doesn't currently | |
haraken
2016/04/11 02:18:14
Or maybe you can use v8CallOrCrash until you find
ikilpatrick
2016/04/11 22:34:24
Just removed the log at the moment. Filed crbug.co
| |
118 // know about main-thread worklets. | |
119 m_scriptState->getExecutionContext()->addConsoleMessage(ConsoleMessage:: create(JSMessageSource, ErrorMessageLevel, "Failed to create instance of class." )); | |
120 } else { | |
121 m_instance.set(isolate, paintInstance); | |
122 } | |
123 } | |
124 | |
27 } // namespace blink | 125 } // namespace blink |
OLD | NEW |